Book clip



FIG. 1 is a front perspective view of a book clip as seen from the top, showing my new design, the broken lines depicting an open book are for illustrative purposes only, forming no part of the claimed design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and

FIG. 8 is a rear elevational view thereof. 

The ornamental design for a book clip, as shown and described. 